Gaskets – mechanical seals that fill the space between two or more surfaces – are used in every market imaginable, from plumbing to aeronautics. Gaskets are ideal for applications like sealing, cushioning, gap filling, surface protection, mechanical aid and more. Their wide range of applications requires that they have an abundance of performance properties and can be created from diverse materials.
In addition to being made from materials like foam, rubber, cloth, felt and plastic, gaskets can be formed from pressure-sensitive tape as well. Pressure-sensitive tapes can be added to various materials to produce a gasket with a pressure-sensitive surface. The tape can be applied to one or both sides of the base gasket component. In some cases, the adhesive tape alone acts as the gasket material.
Like with other goods, pressure-sensitive tapes are available in an array of performance options, making them highly useful in many of the demanding applications that gasket fabricators encounter. Here’s a short list of some of their properties that a gasket fabricator might find useful for special projects:
- High or low temperature resistance
- Adhesion to high-slip or low-energy surfaces
- Adhesion to foam and other cellular or porous materials
- Dimensional stability
- High adhesion
- Low adhesion or clean removability
- Vertical holding power (shear strength)
- Quick stick
- Gap filling
- Resistance to chemicals, solvents or plasticizers
- Resistance to water or moisture
- Suitable for skin contact
- Electrically conductive
In addition to the properties listed above, the use of pressure-sensitive tape can provide additional features to the gasket. For example, the adhesion property of the tape can act as a third hand during installation by temporarily holding the gasket in place while mechanical fasteners are attached. Pressure-sensitive tape can also be used as a delivery system by offering a way to supply gaskets in roll form, making them easier to use. The addition of some pressure-sensitive tapes also adds strength to the finished gasket for easier application, processing or performance. Lastly, the peel-and-stick feature makes application quick and easy, reducing time and labor costs.
Gasketing on your mind? Don’t forget to consider whether a pressure-sensitive tape might be the solution.